I have a data frame called 'Top Chefs', which is a TV show. It has the columns 'Number of Season', 'Name of Contestant', 'Date of Birth', 'Age at the Time of the Show", and 'Contestant ID'. I want to find which contestant was the oldest at the time of their season. I want to choose their row from the data frame 'Top Chefs' and save this as Q2. This should return a DataFrame and the index and missing values should be left as is